Adding `-fstrict-flex-arrays=3` to `PURGATORY_CFLAGS_REMOVE` in `arch/x86/purgatory/Makefile` fixes the build, through I don't know if that's the best solution.
Adding `-fstrict-flex-arrays=3` to `PURGATORY_CFLAGS_REMOVE` in `arch/x86/purgatory/Makefile` fixes the build, through I don't know if that's the best solution.